Cutting device for clay-presses.



P S W B E 0 CUTTING DEVICE FOR CLAY PRESSES.

(Application filed Feb. 10, 1900.)

(No Model.)

T cmms was 00.. PHQTO-LITNOT wnsuyuo'ron u c James STATES PATENT Ornrcn.

\VILLY MOEBIUS, OF HANOVER, GERMANY.

CUTTING DEVICE FOR CLAY-PRESSES.

FSPEOIFIGATION forming part of Letters Patent No. 670,289, dated March19, 1901.

application filed February 10, 1900. Serial No. 4,766. (No model.)

To aZ/I whom/ it may concern.-

Be it known that LWILLY MOEBIUs, a subject. of the Emperor of Germany,residing at Hanover, in the Empire of Germany, haveinvented a certainnew and useful Cutting Device for Clay-Presses, of which the followingis a specification, reference being bad therein to the accompanyingdrawings.

A great variety of cutting devices is known in the pipe and brick makingindustry, and most of them use wires as the cutting agent. However, Ihave found none of them to prove satisfactory when producing drain orother pipes nested together by the use of my process as described by mein an application for Letters Patent filed and executed on the same dayand date as this present application. Owing to the peculiar manner inwhich the pipes are produced here in concentric strings nested together,it becomes a matter of the utmost importance to execute the cutting ofthe string in the desired length in a very exact and careful manner. Toobtain smooth surfaces and straight cuts, the cutting device must movetogether with the string of pipe, and the cutting motion must be veryrapid and eiiective. Another important factor which has to be consideredis the experience that the different concentric pipes of the string donot move with the same speed, and though this difference is only smallit would cause the different pieces of pipe nested together to be ofvarying and various length. Care must therefore be taken to use a devicewhich Will cut off a sufficient length of the string as waste to be surethat the pieces cut for use are of equal length. These considerationshave led to the construction of my device as illustrated in theaccompanying drawings, in which- Figure I shows a side elevation of themouthpiece of a clay-press as used in my process, together with aview ofthe cutting device. Fig. 11 shows the same as seen from above.

Similar letters mark similar parts.

P is the mouthpiece of a clay-press, and A the face-plate of the same,carrying the central cone G and the concentric knives M M, bolted to itby means of the cross-bar OB and bolts p p.

R R R are the nested pipes; Z, a guideroller supporting same; SR a setof the nested pipes cut to the required length by the cutting-frame S bymeans of the cutting-wires D D; B, a carrier on which the cut pipes areremoved to the dryinghouse, and W a carriage running with the wheels V Von the rail T.

K is the stop to upset the cutting frame, and F the spring operating thesame.

h h are hooks holding the cutting-frame set in position for cutting byengaging projections (Z d.

E is the waste; U, a support for the string of pipe; H, handles by whichthe carrier is to be lifted from the carriage, and O the conical andcircular orifice of the face-plate A of the mouthpiece P.

The operation of the device proceeds as follows: The string of nestedpipes emerging from the mouth of the press passes over the guide-rollerZ and the semicircular support U onto the carrier B until it reachesK,which, giving way before the pressure, takes the carriage W alonguntil the hooks h h release the projections 01 d, and with them thecuttingframe S, with its cutting-wires D D, which had been held below13. The cutting-frame S, which is pivoted on both ends in the uprights NN, bolted to the back of the carriage W, is now suddenly projectedupward by the action of spring F, causing the cutting-wires to be drawnthrough the string and cutting it in the desired length. The carrier isnow quickly removed by one laborer, while another resets thecutting-frame and places another carrier on the carriage, when theoperation is repeated, and so on. When pipes of a smaller diameter areto be produced, which can easily be removed by hand, the carrier may bereplaced by guide-rollers provided with semicircular groovescorresponding to the diameter of the string. In this case thecuttingframe need not be operated by a spring, but may be moved up anddown by hand, cutting the string in each up or down movement, care beingtaken, however, always to move the carriage back to its originalposition to allow the cutting of the moving string. The waste ends E ofthe pipe-string R which are dropped to the ground by the upsetting of K,are collected from time to time and returned to the feeder of the press.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

the spring-actuated cutting-frame, for the bination of a carriage,movable on rails, with purpose as set forth and described. (0 acutting-frame, provided with cutting-wires In testimony whereof I aflixmy signature and actuated by a spring, adapted to be set in presence oftwo witnesses.

and held in position by suitable hooks and \VILLY MOE BIUS. projectionsengaging each other, and a stop \Vitnesscs:

to carry along the carriage and to thus dis- LEONORE RASCH,

In a cutting device for clay-presses the comengage the hooks andprojections and release KIRKE LATHROP.

